发明名称 |
Toner for a two-component-type magnetic developing agent having excellent spent resistance |
摘要 |
A toner in which a small amount of magnetic powder is disposed in a resin medium for fixing which comprises a cationic polar group-containing copolymer resin or a resin composition. A distinguished feature resides in that the toner does not contain a charge control agent. The toner is positively charged and exhibits very good spent resistance. The toner further exhibits favorable electrophotographic properties such as transfer efficiency despite there is contained no charge control agent.
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申请公布号 |
US5521045(A) |
申请公布日期 |
1996.05.28 |
申请号 |
US19940343975 |
申请日期 |
1994.11.18 |
申请人 |
MITA INDUSTRIAL CO., LTD. |
发明人 |
FUNATO, MASATOMI;SHIMIZU, YOSHITAKE;ISHIMARU, SEIJIRO;NAGAO, KAZUYA |
分类号 |
G03G9/08;G03G9/083;G03G9/087;G03G9/097;G03G9/10;(IPC1-7):G03G9/083 |
主分类号 |
G03G9/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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